Does Baillie Gifford own ALNY stock?

Yes. As of its Q2 2026 13F, Baillie Gifford holds 2,439,889 shares of ALNY (Alnylam Pharmaceuticals), worth $734.5M.

How many shares of ALNY does Baillie Gifford own?

As of its Q2 2026 13F, Baillie Gifford holds 2,439,889 shares of ALNY (Alnylam Pharmaceuticals).

As of its Q2 2026 13F, Baillie Gifford's ALNY position is worth $734.5M.

In Q2 2026, Baillie Gifford reduced its ALNY position by 53,977 shares (-2.2%).

Baillie Gifford already held ALNY in its Q1 2019 13F, the earliest on record, and has listed it in 30 quarterly 13F filings.

Position history for BAILLIE GIFFORD & CO's holdings in ALNYLAM PHARMACEUTICALS INC

Current Value

$734.5M

Current Shares

2.4M

Total Value Change

+$203.3M

Total Shares Change

-3.2M

Quarter-by-Quarter History

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Decreased	2.4M	-2.2%	$734.5M	0.7%	$301.03	0
2026-Q1	Decreased	2.5M	-4.1%	$825.1M	0.8%	$330.87	0
2025-Q4	Decreased	2.6M	-6.8%	$1B	0.9%	$397.65	0
2025-Q3	Decreased	2.8M	-8.0%	$1.3B	0.9%	$456.00	0
2025-Q2	Decreased	3M	-17.1%	$988.7M	0.7%	$326.09	0
2025-Q1	Decreased	3.7M	-9.5%	$987.6M	0.9%	$270.02	0
2024-Q4	Decreased	4M	-17.3%	$950.7M	0.7%	$235.31	0
2024-Q3	Decreased	4.9M	-19.0%	$1.3B	1.0%	$275.03	0
2024-Q2	Decreased	6M	-8.9%	$1.5B	1.1%	$243.00	0
2024-Q1	Decreased	6.6M	-4.9%	$989.9M	0.8%	$149.45	0
2023-Q4	Decreased	7M	-14.7%	$1.3B	1.1%	$191.41	0
2023-Q3	Decreased	8.2M	-2.7%	$1.4B	1.3%	$177.10	0
2023-Q2	Decreased	8.4M	-2.9%	$1.6B	1.4%	$189.94	0
2023-Q1	Decreased	8.6M	-8.2%	$1.7B	1.6%	$200.32	0
2022-Q4	Decreased	9.4M	-1.1%	$2.2B	2.3%	$237.65	0
2022-Q3	Decreased	9.5M	-4.5%	$1.9B	2.0%	$200.16	0
2022-Q2	Decreased	10M	-1.7%	$1.5B	1.5%	$145.85	0
2022-Q1	Decreased	10.1M	-4.5%	$1.7B	1.2%	$163.29	0
2021-Q4	Increased	10.6M	+1.9%	$1.8B	1.0%	$169.58	46
2021-Q3	Increased	10.4M	+1.9%	$2B	1.0%	$188.81	51
2021-Q2	Increased	10.2M	+1.5%	$1.7B	0.8%	$169.52	46
2021-Q1	Increased	10.1M	+10.3%	$1.4B	0.8%	$141.19	50
2020-Q4	Increased	9.1M	+2.7%	$1.2B	0.7%	$129.97	46
2020-Q3	Increased	8.9M	+2.8%	$1.3B	0.9%	$145.60	46
2020-Q2	Increased	8.6M	+2.8%	$1.3B	1.0%	$148.11	46
2020-Q1	Increased	8.4M	+2.8%	$915.6M	1.0%	$108.85	46
2019-Q4	Decreased	8.2M	-0.6%	$942.9M	0.9%	$115.17	0
2019-Q3	Increased	8.2M	+32.5%	$662.3M	0.8%	$80.42	57
2019-Q2	Increased	6.2M	+9.3%	$450.9M	0.5%	$72.56	41
2019-Q1	First report	5.7M	-	$531.2M	0.6%	$93.45	0